EP 4071978 A4 20230118 - AXIAL-GAP TYPE ROTATING ELECTRIC MACHINE
Title (en)
AXIAL-GAP TYPE ROTATING ELECTRIC MACHINE
Title (de)
ELEKTRISCHE ROTATIONSMASCHINE MIT AXIALEM SPALT
Title (fr)
MACHINE ÉLECTRIQUE TOURNANTE DE TYPE À ENTREFER AXIAL
Publication
Application
Priority
- US 202062961130 P 20200114
- JP 2020047363 W 20201218
Abstract (en)
[origin: EP4071978A1] An axial-gap-dynamoelectric machine that allows magnetic fluxes to flow efficiently while enhancing assemblability of pressed powder teeth to a base yoke is provided. An axial-gap-dynamoelectric machine X includes resin bobbins 9 having positioning protrusions 9c, and a base yoke 5 having a plurality of tooth holes 6 and positioning holes 5a. In each tooth hole 6, a circumferential length of a tooth-hole-radial-direction-outer-end surface 6c is larger than a circumferential length of a tooth-hole-radial-direction-inner-end surface 6a. Each of the plurality of pressed powder teeth 8 has a columnar shape in which a circumferential length of a pressed-powder-tooth-upper surface 8b is larger than a circumferential length of a pressed-powder-tooth-bottom surface 8a. The positioning protrusions 9c are inserted in the positioning holes 5a, and press the pressed powder teeth 8 against the base yoke 5 inward in the radial direction of a stator core 7 such that the pressed-powder-tooth-bottom surface 8a is brought into contact with the tooth-hole-radial-direction-inner-end surface 6a and the pressed-powder-tooth-oblique surface 8c is brought into contact with the tooth-hole-circumferential-direction-end surface 6c.
IPC 8 full level
H02K 3/34 (2006.01); H02K 1/02 (2006.01); H02K 1/14 (2006.01); H02K 3/52 (2006.01); H02K 21/24 (2006.01)
CPC (source: EP US)
H02K 1/148 (2013.01 - EP); H02K 1/16 (2013.01 - US); H02K 1/2713 (2013.01 - US); H02K 1/2793 (2013.01 - US); H02K 1/2795 (2022.01 - EP); H02K 3/12 (2013.01 - US); H02K 3/34 (2013.01 - US); H02K 3/522 (2013.01 - EP); H02K 21/24 (2013.01 - EP US); H02K 29/03 (2013.01 - US); H02K 29/03 (2013.01 - EP); H02K 2203/12 (2013.01 - EP); H02K 2213/03 (2013.01 - EP); Y02T 10/64 (2013.01 - EP)
Citation (search report)
- [A] JP 2010088142 A 20100415 - DAIKIN IND LTD
- [A] US 2011316381 A1 20111229 - ASANO YOSHINARI [JP], et al
- [A] EP 1450464 A1 20040825 - YAMAHA MOTOR CO LTD [JP]
- [A] EP 1746704 A2 20070124 - YAMAHA MOTOR CO LTD [JP]
- [A] EP 1536542 A1 20050601 - YAMAHA MOTOR CO LTD [JP]
- [A] US 2016268866 A1 20160915 - MATSUMOTO HIRONORI [JP]
- [A] EP 3131188 A1 20170215 - HITACHI INDUSTRY EQUIPMENT SYSTEMS CO LTD [JP]
- [A] EP 1460746 A1 20040922 - YAMAHA MOTOR CO LTD [JP]
- See also references of WO 2021145135A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
Designated validation state (EPC)
KH MA MD TN
DOCDB simple family (publication)
EP 4071978 A1 20221012; EP 4071978 A4 20230118; EP 4071978 B1 20231129; CN 114902532 A 20220812; CN 114902543 A 20220812; EP 4071973 A1 20221012; EP 4071973 A4 20230118; EP 4071973 B1 20240925; JP 7300525 B2 20230629; JP 7318012 B2 20230731; JP WO2021145135 A1 20210722; JP WO2021145136 A1 20210722; US 12074489 B2 20240827; US 12081088 B2 20240903; US 2022345018 A1 20221027; US 2022352777 A1 20221103; WO 2021145135 A1 20210722; WO 2021145136 A1 20210722
DOCDB simple family (application)
EP 20913217 A 20201218; CN 202080091239 A 20201218; CN 202080091261 A 20201218; EP 20914238 A 20201218; JP 2020047363 W 20201218; JP 2020047364 W 20201218; JP 2021570697 A 20201218; JP 2021570698 A 20201218; US 202217859412 A 20220707; US 202217859483 A 20220707